I hope it works well for you. Actually, I think I first learned about the hammock on another thread on these boards, so I guess it's just coming full circle!
I posted a longer description of our experience with the hammock on the new thread just started by maggie's mom...
but about co-sleeping, we don't use the hammock because I just find it easiest to put him to bed by side-lying nursing. I just fall asleep nursing, and it's easier to feed him in the middle of the night if he's right next to me. also, ds sleeps best and longest when he's near us, and I'm not going anywhere while sleeping, so we prefer to sleep with the baby. even for daytime naps, I have to start the cycle by nursing him in a sling, then wait till he's totally asleep before I can transfer him over to the hammock (or as dr. sears calls it, "wearing down").
my latest trick is to get a chain of a couple sassy rings and attach them to the bar of the hammock. then when i put the baby down in his sling, I attach the sling rings to the lowest sassy ring. that way, to the baby, it still feels like I'm wearing him because it adds just a little bit more tension to the sling fabric. it's hard to picture, but once you get the hammock, you'll see what i mean.
I was also really impressed with how fast the shipping is, even though it was sent from the other side of the globe!